flight Aircraft
N23721
BOEING 737-700
Operated by UNITED AIRLINES INC
- Tail number
- N23721
- Type
- B737
- Mode-S
- A22539
Airborne now · flying as UAL1869 at 4,075 ft
- Flights observed
- 9
- Avg flight time
- 45m
- Typical route
- -
- Last seen
- 14h ago
Live position
Recent flights last 9
| Date | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|
| 2026-04-14 | DEN → SJC | Apr 14, 10:15 UTC | Apr 14, 10:55 UTC | 40m |
| 2026-04-13 | ORD → MSN | Apr 13, 21:45 UTC | Apr 13, 22:55 UTC | 1h 10m |
| 2026-04-13 | SFO → IAH | Apr 13, 19:45 UTC | Apr 13, 20:10 UTC | 25m |
| 2026-04-13 | - | Apr 13, 17:15 UTC | Apr 13, 17:50 UTC | 35m |
| 2026-04-13 | LAS → SFO | Apr 13, 14:45 UTC | Apr 13, 15:45 UTC | 1h 0m |
| 2026-04-13 | - | Apr 13, 12:20 UTC | Apr 13, 13:20 UTC | 1h 0m |
| 2026-04-13 | CLE → DEN | Apr 13, 01:23 UTC | Apr 13, 01:53 UTC | 30m |
| 2026-04-12 | - | Apr 12, 19:15 UTC | Apr 12, 20:05 UTC | 50m |
| 2026-04-12 | - | Apr 12, 17:09 UTC | Apr 12, 17:48 UTC | 39m |
Specifications
| Registration | N23721 |
| Aircraft type | BOEING 737-700 (B737) |
| Operator | UNITED AIRLINES INC |
| Mode-S code | A22539 · 50422471 (octal) |
Looking for transponder-level data? View the Mode-S A22539 page for country allocation, callsign history, and ADS-B signal details.
N23721 frequently asked
What type of aircraft is N23721?
N23721 is a BOEING 737-700 (ICAO type code B737).
Who operates N23721?
N23721 is operated by UNITED AIRLINES INC.
What is the Mode-S transponder code for N23721?
N23721 broadcasts on Mode-S (ICAO 24-bit) address A22539 (octal 50422471). View the transponder page.
Where is N23721 right now?
N23721 is currently airborne flying as UAL1869. Live position is shown on the map above.